The present disclosure relates to a system that comprises: a control station intended to be operated; an unmanned aerial vehicle for multiple tasks (UAM) which is supported, by unmanned aerial devices (UAV), unmanned ground vehicle (UGV), and by a centralised mobile reel unit which feeds cables and hoses for supplying multiple additive and subtractive fluids (e.g. paint, air suction, etc.) and for charging power; wherein the cables and hoses comprise a device that makes it possible to predict trajectories, without interfering with flight maneuvers or the environment. The UAM comprises a robotic arm with specific tools that make it possible, for example, to paint fences, as well as a device that allows it to be attached to various surfaces.